Measurements, proper scaling and application of communication parameters

In this paper a technique is proposed which finds a unique linear predictor which is used to construct volume tables for different tree species, when it is multiplied by proper scaling factors. This technique uses the fact that one species can give information about some other. This information can be used in future studies where data are not available on all the species considered.

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ON SEVERAL PROPERTIES OF A CLASS OF PREFERENTIAL ATTACHMENT TREES—PLANE-ORIENTED RECURSIVE TREES

Probability in the Engineering and Informational Sciences ◽

10.1017/s0269964820000261 ◽

2020 ◽

pp. 1-19

Author(s):

Panpan Zhang

Keyword(s):

Continuous Time ◽

Preferential Attachment ◽

Mass Function ◽

Probability Mass Function ◽

Zagreb Index ◽

Exact Probability ◽

Probability Mass ◽

Proper Scaling ◽

Recursive Trees ◽

Degree Variable

In this paper, several properties of a class of trees presenting preferential attachment phenomenon—plane-oriented recursive trees (PORTs) are uncovered. Specifically, we investigate the degree profile of a PORT by determining the exact probability mass function of the degree of a node with a fixed label. We compute the expectation and the variance of degree variable via a Pólya urn approach. In addition, we study a topological index, Zagreb index, of this class of trees. We calculate the exact first two moments of the Zagreb index (of PORTs) by using recurrence methods. Lastly, we determine the limiting degree distribution in PORTs that grow in continuous time, where the embedding is done in a Poissonization framework. We show that it is exponential after proper scaling.

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Limit theorems for point processes generated in a general branching process

Advances in Applied Probability ◽

10.1017/s0001867800036430 ◽

1981 ◽

Vol 13 (04) ◽

pp. 650-668 ◽

Cited By ~ 2

Author(s):

Martin Härnqvist

Keyword(s):

Poisson Process ◽

Point Processes ◽

Branching Processes ◽

Special Problem ◽

Convergence Theory ◽

Regularity Conditions ◽

Convergence Results ◽

Mixed Poisson Process ◽

Proper Scaling ◽

Extra Point

With the general convergence theory for branching processes as basis a special problem is studied. An extra point process of events during life is assigned to each realised individual, and the behaviour of the superposition of such point processes in action is studied as the population grows. With the proper scaling and under some regularity conditions the superposition is shown to converge in distribution to a Poisson process. Another scaling gives rise to a mixed Poisson process as limit. Established weak convergence techniques for point processes are applied, together with some recent strong convergence results for branching processes.

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Fatigue Focused Optimization of Treatment Parameters – A Case Study about Deep Cryogenic Treatment

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.488-489.498 ◽

2011 ◽

Vol 488-489 ◽

pp. 498-501

Author(s):

Paolo Baldissera ◽

Cristiana Delprete

Keyword(s):

Cryogenic Treatment ◽

Likelihood Estimation ◽

Deep Cryogenic Treatment ◽

Soaking Time ◽

Surface Method ◽

Treatment Parameter ◽

Standard Response ◽

Proper Scaling ◽

Two Parameters

The problem of treatment parameter optimization focused on the fatigue resistance is analysed through a case study about Deep Cryogenic Treatment (DCT) of AISI 302 steel. In particular, the possibility to integrate fatigue data fittings through the Maximum Likelihood Estimation (MLE) method in the optimization process is evaluated. Two levels of two parameters (soaking time and temperature) are considered and then expanded to three by proper scaling of their values in order to include the untreated case as a “zero” level. Fatigue focused optimization is then achieved by standard Response Surface Method (RSM) and by MLE with two models for comparison purposes.

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Proper scaling of the anomalous Hall effect in the Co/Pt multilayers

Journal of Applied Physics ◽

10.1063/1.3622518 ◽

2011 ◽

Vol 110 (3) ◽

pp. 033921 ◽

Cited By ~ 8

Author(s):

F. Zhang ◽

F. S. Wen ◽

Y. F. Lü ◽

W. Li ◽

Y. F. Lu ◽

...

Keyword(s):

Hall Effect ◽

Anomalous Hall Effect ◽

Proper Scaling

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Proper Scaling of the Anomalous Hall Effect

Physical Review Letters ◽

10.1103/physrevlett.103.087206 ◽

2009 ◽

Vol 103 (8) ◽

Cited By ~ 232

Author(s):

Yuan Tian ◽

Li Ye ◽

Xiaofeng Jin

Keyword(s):

Hall Effect ◽

Anomalous Hall Effect ◽

Proper Scaling

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Impulsive Loads on Interconnected Floating Bodies

Volume 4: Ocean Engineering; Ocean Renewable Energy; Ocean Space Utilization, Parts A and B ◽

10.1115/omae2009-80094 ◽

2009 ◽

Author(s):

Luca Martinelli ◽

Piero Ruol ◽

Barbara Zanuttigh

Keyword(s):

Laboratory Tests ◽

Scaling Laws ◽

Floating Body ◽

Floating Bodies ◽

Lumped Mass ◽

Mass System ◽

Wave Energy Converters ◽

Impulsive Loads ◽

Proper Scaling ◽

Tie Rods

Aim of this contribution is to examine the load on the mooring and on the tie rods of a set of interconnected floating bodies under extreme waves, with particular attention to the layout obliquity. Tests carried out at the IMAGE department of Padova University are briefly presented. It is doubtful how to scale the laboratory tests in the presence of impulsive loads on semi-taught moorings. In order to find proper scaling laws, a numerical model is presented where the chain and the floating body are studied as a lumped mass system. Results, compared to available laboratory tests are encouraging and it appears that the main processes in presence of impulses are correctly represented by the model. Model calibration will be carried out shortly, on the basis of specific ongoing tests on floating Wave Energy Converters.

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Earthquakes, Records, and Nonlinear Responses

Earthquake Spectra ◽

10.1193/1.1586011 ◽

1998 ◽

Vol 14 (3) ◽

pp. 469-500 ◽

Cited By ~ 419

Author(s):

Nilesh Shome ◽

C. Allin Cornell ◽

Paolo Bazzurro ◽

J. Eduardo Carballo

Keyword(s):

Earth Quake ◽

Structural Response ◽

Steel Structure ◽

Lower Intensity ◽

Nonlinear Analyses ◽

Nonlinear Responses ◽

Annual Probability ◽

Proper Scaling ◽

Global And Local ◽

Nonlinear Structural Response

The estimation of MDOF nonlinear structural response given an earth-quake of magnitude M at distance R is studied with respect to issues such as the benefits and harms of (1) first scaling the records, (2) selecting records from the “wrong” magnitude, (3) alternative choices for how to scale the records, and (4) scaling records to a significantly higher or lower intensity, etc. We find that properly chosen scaling can reduce the necessity of the number of nonlinear analyses by a factor of about four, and that proper scaling does not introduce any bias. Several global and local nonlinear damage measures are considered. A five-DOF model of a steel structure is used; other cases are under study. The paper finishes with a demonstration of the use of such results in the estimation of the annual probability of exceeding a specified interstory ductility (drift) or other damage measures.

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ASSESSMENT AND MANAGEMENT OF SAFETY RISKS THROUGH HIERARCHICAL ANALYSIS IN FUZZY SETS TYPE 1 AND TYPE 2: A CASE STUDY (FARYAB CHROMITE UNDERGROUND MINES)

Rudarsko-geološko-naftni zbornik ◽

10.17794/rgn.2021.3.1 ◽

2021 ◽

Vol 36 (3) ◽

pp. 1-17

Author(s):

Mohammad Reza Ameri Siahuei ◽

Mohammad Ataei ◽

Ramin Rafiee ◽

Farhang Sereshki

Keyword(s):

Risk Assessment ◽

Fuzzy Sets ◽

Underground Mine ◽

Underground Mines ◽

Mine Safety ◽

Safety Risks ◽

Proper Scaling ◽

Blast Scaling

There is a high rate of casualty among miners in the world every year. One way to reduce accidents and increase safety in mines is to use the risk management process to identify and respond to major hazards in mines. The present study is an attempt to investigate the assessment and management of safety risks in Faryab chromite underground mines. In this paper, the method of AHP in type-1 and type-2 fuzzy sets is used for risk assessment. Upon studying two underground mines of Faryab chromite (Makran and Nemat), 45 hazards were divided into 9 groups, among which 7 main risks were eventually identified. The risk assessment showed that the most important hazards in the Nemat underground mine are the required airflow, the lack of proper scaling and post-blast scaling. Similarly, the assessment of hazards in the Makran underground mine showed that post-blast scaling, absence of proper scaling, and proper ventilation of dust, are the most important hazards. Finally, after detecting the causes of the accidents, based on the records of accidents at the mine safety, health, and environmental unit, technical personnel’s descriptions, and similar risk projects, proper responses are prepared for each group of hazards.

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